(a)
<span>Let: </span>
<span>a be the acceleration of the system, </span>
<span>g be the acceleration due to gravity, </span>
<span>T be the tension in the string. </span>
<span>For mA: </span>
<span>T = mA a </span>
<span>For mB: </span>
<span>mB g - T = mB a </span>
<span>Adding to eliminate T: </span>
<span>mB g = (mA + mB)a ...(1) </span>
<span>a = mB g / (mA + mB) </span>
<span>= 7.0 * 9.81 / (11.0 + 7.0) </span>
<span>= 3.815 m/s^2 </span>
<span>= 3.82 m/s^2 to 3 sig. fig. </span>
<span>(b) </span>
<span>Let: </span>
<span>s be the distance to the edge of the table, </span>
<span>t be the time taken. </span>
<span>s = at^2 / 2 </span>
<span>t = sqrt(2s / a) </span>
<span>= sqrt(2 * 1.250 / 3.815) </span>
<span>= 0.810 sec to 3 sig. fig. </span>
<span>(c) </span>
<span>From (1): </span>
<span>(mA + mB)(a / g) = mB </span>
<span>mA(a / g) = mB(1 - a / g) </span>
<span>mA = mB(g / a - 1) </span>
<span>= 4.0(100 - 1) </span>
<span>= 396 kg.</span>
I will provide some ideas for you to write the 150-words paragraph.
* several forms of activism. some were violent and some other were peaceful.
* motivation of black people in America- Empowerment.
*black power organization dedicated to socialism (used violence)
* police arrested many people for violence.
* In the Caribbean, the Black Power Revolution was created.
** The Black Panther Party- they used guns openly to protect the Party from the police.
People working in america that have factory jobs, Immigrants come to america and workers will be forced out of their job and given to the immigrants.
in the 1900s The U. S. Wanted to maintain the created expansion and not 'push its luck' with other nations.
<h3>How was United States in 1900s?</h3>
In 1900s, United States gained a lot of space and territory which was a result of some events such as as world war and others.
However, imperialistic actions on the part of the united states was made because those territory gained by United States were been secured.
Learn more about United States in 1900s at;
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<span>It showed that the Union's 3-way plan might succeed.</span>
